Repository files (latest commit first)

Filename	Latest commit message	Latest commit date
Thomas Gleixner d0d327fe37 x86/timer: Don't skip PIT setup when APIC is disabled or in legacy mode ... commit 979923871f69a4dc926658f9f9a1a4c1bde57552 upstream. Tony reported a boot regression caused by the recent workaround for systems which have a disabled (clock gate off) PIT. On his machine the kernel fails to initialize the PIT because apic_needs_pit() does not take into account whether the local APIC interrupt delivery mode will actually allow to setup and use the local APIC timer. This should be easy to reproduce with acpi=off on the command line which also disables HPET. Due to the way the PIT/HPET and APIC setup ordering works (APIC setup can require working PIT/HPET) the information is not available at the point where apic_needs_pit() makes this decision. To address this, split out the interrupt mode selection from apic_intr_mode_init(), invoke the selection before making the decision whether PIT is required or not, and add the missing checks into apic_needs_pit(). Fixes: c8c4076723 ("x86/timer: Skip PIT initialization on modern chipsets") Reported-by: Anthony Buckley <tony.buckley000@gmail.com> Tested-by: Anthony Buckley <tony.buckley000@gmail.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@kernel.org> Cc: Daniel Drake <drake@endlessm.com> Link: https://bugzilla.kernel.org/show_bug.cgi?id=206125 Link: https://lore.kernel.org/r/87sgk6tmk2.fsf@nanos.tec.linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2020-02-11 04:35:52 -08:00
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alpha
arc
arm
arm64	arm64: dts: qcom: qcs404-evb: Set vdd_apc regulator in high power mode	2020-02-11 04:35:42 -08:00
c6x
csky
h8300
hexagon
ia64
m68k
microblaze
mips
nds32
nios2
openrisc
parisc
powerpc	powerpc/44x: Adjust indentation in ibm4xx_denali_fixup_memsize	2020-02-11 04:35:45 -08:00
riscv
s390	KVM: s390: do not clobber registers during guest reset/store status	2020-02-11 04:35:42 -08:00
sh
sparc	mm/mmu_gather: invalidate TLB correctly on batch allocation failure and flush	2020-02-11 04:35:42 -08:00
um
unicore32
x86	x86/timer: Don't skip PIT setup when APIC is disabled or in legacy mode	2020-02-11 04:35:52 -08:00
xtensa
.gitignore
Kconfig	mm/mmu_gather: invalidate TLB correctly on batch allocation failure and flush	2020-02-11 04:35:42 -08:00